import java.util.Scanner;

public class one {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextInt()) {
            int a = in.nextInt();
            int b = in.nextInt();
            if(Math.abs(a)>1000||Math.abs(b)>1000){
            	System.out.println("a<=1000");
            }
            else
            System.out.println(a + b);
        }
    }
}